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431312063 = 72132113209
BaseRepresentation
bin11001101101010…
…100110010111111
31010001120220220212
4121231110302333
51340403441223
6110444303035
713455043400
oct3155246277
91101526825
10431312063
11201512156
12100541a7b
136b485850
14413d59a7
1527ceb278
hex19b54cbf

431312063 has 24 divisors (see below), whose sum is σ = 543054960. Its totient is φ = 339534720.

The previous prime is 431312033. The next prime is 431312081. The reversal of 431312063 is 360213134.

It is not a de Polignac number, because 431312063 - 212 = 431307967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431312023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132803 + ... + 136011.

It is an arithmetic number, because the mean of its divisors is an integer number (22627290).

Almost surely, 2431312063 is an apocalyptic number.

431312063 is a deficient number, since it is larger than the sum of its proper divisors (111742897).

431312063 is a wasteful number, since it uses less digits than its factorization.

431312063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 431312063 is about 20768.0539049763. The cubic root of 431312063 is about 755.5511453086.

Adding to 431312063 its reverse (360213134), we get a palindrome (791525197).

The spelling of 431312063 in words is "four hundred thirty-one million, three hundred twelve thousand, sixty-three".

Divisors: 1 7 13 49 91 211 637 1477 2743 3209 10339 19201 22463 41717 134407 157241 292019 677099 2044133 4739693 8802287 33177851 61616009 431312063